Networking (Multiple Operating Systems, Multiple Servers)

Unless the physical servers are each running in standalone mode — “Standalone Systems (One Single-Core Server, One Operating System Instance)”) — when you have multiple operating systems running on an equal or lesser number of physical servers, the virtualization technologies that can be used to flexibly use their resources fall into the networking category of virtualization technologies.

There are many well established applications, protocols, and networking technologies. They work between multiple HP-UX operating systems, and between HP-UX and other operating systems as well. Table 2-2 lists a few common networking technologies.